butler



(No Model.) 2 Sheets-Sheet 1.

W. P. BUTLER.

LAMP.

No. 451,753. Patented May, 1891.

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(No Model.)

W. P. BUTLER.

LAMP.

110.451,'753. Patented May 5,1891.

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t UNITED rrATns IVILLIAM P. BUTLER, OF CHICAGO, ILLINOIS.

LAMP.

SPECIFICATION forming part of Letters Patent No. 45 1,'7 53, dated `May 5, 1891.

Application filed July 3, 1890. Serial No. 357,631. (No model.)

To all whom it may concern,.-

Be it known that I, WILLIAM P. BUTLER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Lamps, of which the following is a specification.

This invention relates to that type of lamp having an oil or gasoline reservoir, and a connected fount that is supplied from the reservoir with a regulated quantity of burningiiuid to enable the lamp to burn for a predetermined number of hours.

The invention consists in the construction and combination of parts in a lamp, as hereinafter described and claimed.

In the annexed drawings, illustrating the invention, Figure 1 is an elevation of my improved lamp, showing the ventilator and attached shade adjusted to an elevated posi-V tion to give access to the burner to permit the lamp to be lighted. Fig. 2 shows the lamp in vertical section with the ventilator and shade lowered. Fig. 3 is an inverted plan of the reiiector and attached shade. Fig. 4. is a plan of the perforated diaphragm and its support, which surrounds the burner at the base of the shade. Fig. is a section of the oil-fount and attached burner, showing, also, a portion of the siphon-tube.

Referring to the drawings, the numeral 1 designates a reservoir which may be capable of holding a supply of oil, gasoline, or other vaporizable burnin g-fluid sufficient to last for a month or other comparatively long period.

The under side of the oil-reservoir 1 is provided with a socket 2, by which the lamp can be mounted on a lamp-post for a street-light. The reservoir and socket are preferably made of metal.

Above the reservoir 1 is an oil-fount 3, which is preferably made of glass. On the top of this fount 3 near one side is a neck 4, having a perforated stopper 5, which affords passage for the short leg of a Siphon-tube G, the long leg of which is extended nearly to the bottom of the reservoir 1. The siphon-tube 6 is made of lead or other iexible material, so that it. can be readily bent, and its short legis adjustably held in the stopper 5 by means of a set-screw 7, that will permit adjustmentof the short leg of the siphon within the fount 3 to any desired depth, so as to leave the contents of the fount at any predetermined height, and thereby cause the lamp to become extinguished when all the oil or burningfluid in the fount is consumed.

The reservoir 1 is provided near one side with a iilling-tube 8, the upper end of which can be closed by a cap 9 or other suitable stopper. From one side of the filling-tube S near its upper end extends a horizontal tubular branch 10, which connects with a neck 11, located centrally on top of the'fount 3 and communicating therewith. The pipe or tube 10 serves to brace the filling-tube 8, and by communicating with the neck 11 enables the fount 3 to be filled at they same time with the oil reservoir.

In the top of the reservoir 1 is an air-tube 12, by which-the lamplighter can blow into the reservoir and cause a renewed supply of oil or gasoline to flow from the reservoir into the fount 3, when required, through the siphon 6, and also through the stoppered tube S and branch tube 10, and the siphon having been previously adjusted to the proper depth in the fount 3, the surplus oil 0`r burning-duid beyond what is required t0 supply the lamp for a given number of hours will flow back from the fount and into the reservoir until the mouth of the short Siphon-leg is uncovered. If the fount 3 is transparent or made of glass, as preferred, the depth to which the short leg of the siphon is adjusted can be readily seen, or a gage may be provided on the siphon by which it can be adjusted as desired. Theair-tube merely passes through the top Wall of the reservoir in juxtaposition to the filling tube S and terminates, as shown, above the level of the oil in the reservoir.

The neck 11 of the fount 3 supports a burner-tube 13, having an igniting-cup 14, as usual in vapor-burners.

To opposite sides of the reservoir 1 are attached verticalguide-rods 15, having collars 16, which support a transverse bar 17, the central portion of which is formed with a ring 18, that surrounds the burner-tube and supports a horizontal perforated diaphragm 19 for checking currents of air. On the upper side of the ring 18 rests the lower end of a glass shade or globe 20, which is preferably in the form of an inverted truncated cone.

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The upper end of this shade or globe is detachably fastened by means of pivoted clips or clamps 2l to the under side of a reiiector 22, that is formed on or attached to the lower end of a ventilator or lamp-top 23, which is adjustably supported on the guide-rods by means of tubular clamps 24 or other fastenings-such, for instance, as a spring-catch 25 attached to the under side of the reflector 22 and adapted to engage a notch 26 in one of the guide-rods Iii-and so permit the ventilator, the reiiector, and the globe or shade to be raised and lowered together and be sup- Tported in an elevated position on the guiderods to give access to the burner.

The operation of the lamp will be readily A understood. After adjusting the siphon 6 so that its short leg will be at a proper depth in the fount 3, according to the number of hours that the lamp is to remain lighted, and then supplying the fount with burning-fluid from the reservoir l by blowing in the air-tube l2, the lamplighter will then raise the ventilator 23 and attached shade 2O and pour a little oil or gasoline into the cup 14 and ignite the same. The ventilator and shade will then be lowered and the lamp left to light itself from the heat generated in the igniting-cup, which will quickly vaporize and ignite the burninghuid in the burner. IVhen the gasoline or other burning-fluid in the fount 3 is exhausted at the end of the period for which it was supplied, the lamp will extinguish itself.

It will be observed that the parts of the lamp are so arranged that they can be easily cleaned when necessary. No chimney is required other than that formed by the shade and ventilator. The shade or globe is not liable to smoke or become broken in manipulating the lamp. For street-lighting, to which the lamp is particularly adapted, the reservoir l may be of sufficient capacity to hold a months supply of burning-fluid, While the fount 3 is intended to supply the lamp for only a single night, or a portion of the night, as may be desired, according to the adjustment that is given to the siphon. The quantity of burning-duid consumed can thus be regulated to a nioety, and as the lamp does not require any attention after lighting and extinguishes itself when the oil or gasoline in the fount is consumed it is obvious that economy of labor and material is effected by use of this lamp.

The ventilator or lamp-top 23 may be of any suitable or desired form; but I prefer to make its lower portion in the shape of the frustum of a cone and its upper interior portion cylindrical and provided at intervals with upwardly-projecting lugs or short standards 27, which support cross-rods 28, as shown in Fig. 3. These cross-rods 28 project laterally beyond the walls of the cylindrical portion of the ventilator, and the ends of each rod are passed through perforations in the lower part of a conical cap 29, which is thus supported a short distance above the cylindrical part of the ventilator and projects laterally beyond the same. On the ends of the rods 28 which project beyond the cap 29 is supported a band or annular shield 30, which surrounds the space between the cap and ventilator and at a distance therefrom, and prevents the disturbing influences of outer currents of air from interfering with the proper action of the ventilator. This result is further attained by providing the upper end of the ventilator 23 with an outward and downward projecting annular iange 3l in line with and below the outer lower edge of the conical cap. t

In Fig. 5 I have shown the burner-tube 13 and igniting-cup 14 surmounted by a burner 32, having an annular series of lateral orifices 33 for the exit of the flame in jet form between the upper and lower annular deflectors 34 and 35, that project laterally beyond the burner above and below said j et-orices and serve to direct the flame outward. The neck Il of the oil-fount 3 is preferably cylindrical and closed at the top by concentric screw-caps 36 and 37 either or both of which can be removed for the purpose of placing the lower part of the wick 38 in the oil-fount. The upper partv of the wick 38 extends through the burner-tube 13 to the lower end of the burner 32, and the tube 13 is inserted in a perforation in the center of the cap 37, which, together with the cap 36, is supported by the neck of the oil-fount. The burning-fluid in the fount 3 is taken up by the wick and becomes vaporized in the heated burner-tube and burner after the oil in the cup 14C has been ignited to start the lamp in the usual manner. In order to get access to the cup I4 for the purpose of supplying it with oil and then lighting the lamp, the shade 20 and ventilator 23 will be lifted along the IOC guide-rods l5 and supported thereon for the time in an elevated position, either by means of the clamps 2st or by causing the springcatch 25 to engage the notch 26; or the shade and ventilator can be supported in any other suitable manner while lighting or cleaning the lamp. After the lamp is lighted the shade and ventilator should be lowered and the lamp will be allowed to burn until the supply of oil in the fount 3 is exhausted, the number of hours that the lamp remains in operation being determined by the adjustment given to the Siphon G, as before explained.

The lamp can be set onto a post or hung up from the top as a street-lamp, or it may be provided with a suitable base or support for use as a house-lamp.

Vhat I claim as my invention is-- 1. A lamp consisting of a reservoir having vertically-extending guide-rods, a fount arranged above and supplied from the reservoir and carrying a burner, a crossbar mounted on the guide-rods and having a perforated diaphragm, thro ugh which the burner proj ects, a vertically-movable globe supported by the cross-bar, and a ventilator connected to the globe and having sliding connections with the IIO guide-rods for raising and lowering the globe, substantially as described.

2. In a lamp, the combination of an oil-reservoir having vertical guide-rods, a burner above the reservoir, a cross-bar carried bythe guide-rods and provided with a perforated diaphragm, throughwhich theburnerproj ects, and a globe supported by the cross-bar, having sliding connections with the guide-rods and rising and falling independent of the cross-bar andits diaphragm, substantially as described.

3. In a lamp, the combination of an oil-reservoir having attached vertical guide-rods, a burner located above the reservoir, a cross-bar carried by the guide-rods and having a perforated diaphragm, through which the burner projects, a globe supported by but movable vertically independent of the cross-bar and its diaphragm, and a ventilator and reilector connected with the globe and having sliding connections with the guide-rods for raising and lowering the globe, substantially as described.

4. In a lamp, the combination, with an oil reservoir having attached Vertical guide-rods and a burner above the reservoir, of a vertithe globe-support, and a vertically-movable ventilator having sliding connections With the guide-rods and provided with an attached reflector having catches engaging the globe for raising and lowering the latter, substantially as described.

In testimony whereof I have affixed my signature in presence of two Witnesses.

WILLIAM P. BUTLER.

Witnesses:

W. A. Ross, ALEXANDER FRIEND. 

